:root {
  --dark: #1a1a1a;
  --accent: #4a4a4f;
  --gray-bg: #f5f5f3;
  --text-secondary: #5a5a5a;
  --border: #e2e0da;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Segoe UI', Arial, sans-serif;
  color: var(--dark);
  line-height: 1.6;
  background: #ffffff;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}

header img.logo-gca {
  height: 56px;
}

nav a {
  color: var(--dark);
  text-decoration: none;
  margin-left: 28px;
  font-size: 14px;
  font-weight: 500;
}

nav a:hover { color: var(--accent); }

/* Hero */
.hero {
  text-align: center;
  padding: 80px 24px 70px;
  background: #ffffff;
}

.hero img.logo-gca-big {
  height: 260px;
  margin-bottom: 24px;
}

.hero .tagline {
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--text-secondary);
  margin-bottom: 28px;
}

.hero h1 {
  font-size: 30px;
  font-weight: 600;
  margin-bottom: 14px;
}

.hero p {
  max-width: 560px;
  margin: 0 auto 28px;
  color: var(--text-secondary);
  font-size: 16px;
}

.btn {
  display: inline-block;
  background: var(--dark);
  color: #fff;
  padding: 14px 32px;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0.5px;
  transition: background 0.2s;
}

.btn:hover { background: var(--accent); color: var(--dark); }

.btn-gold {
  background: var(--accent);
  color: var(--dark);
}

.btn-gold:hover { background: #333336; color: #fff; }

/* Services */
.services {
  padding: 70px 24px;
  background: var(--gray-bg);
}

.section-title {
  text-align: center;
  margin-bottom: 48px;
}

.section-title .eyebrow {
  color: var(--accent);
  font-size: 12px;
  letter-spacing: 2px;
  font-weight: 600;
  display: block;
  margin-bottom: 10px;
}

.section-title h2 {
  font-size: 26px;
  font-weight: 600;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: #fff;
  border-radius: 8px;
  padding: 32px 24px;
  text-align: center;
  border-top: 3px solid var(--accent);
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.service-card .icon {
  font-size: 30px;
  margin-bottom: 16px;
}

.service-card h3 {
  font-size: 17px;
  margin-bottom: 10px;
}

.service-card p {
  line-height: 1.7;
}

.service-card p {
  font-size: 14px;
  color: var(--text-secondary);
}

/* About */
.about {
  padding: 70px 24px;
}

.about-content {
  max-width: 720px;
  margin: 0 auto;
}

.about-list {
  list-style: none;
  margin-top: 20px;
}

.about-list li {
  padding: 10px 0;
  font-size: 15px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}

.about-list li::before {
  content: "✓";
  color: var(--accent);
  font-weight: bold;
  margin-right: 12px;
}

/* Partner / SM section */
.partner {
  background: var(--dark);
  padding: 70px 24px;
  color: #fff;
}

.partner-inner {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.partner .eyebrow {
  color: var(--accent);
  font-size: 12px;
  letter-spacing: 2px;
  font-weight: 600;
  display: block;
  margin-bottom: 24px;
}

.partner img.logo-sm {
  height: 110px;
  margin-bottom: 20px;
}

.partner p {
  color: #c8c8c8;
  font-size: 15px;
  max-width: 500px;
  margin: 0 auto;
}

/* Contact */
.contact {
  padding: 70px 24px;
  background: var(--gray-bg);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}

.contact-card {
  background: #fff;
  border-radius: 8px;
  padding: 24px;
  font-size: 14px;
  color: var(--text-secondary);
}

.contact-card .label {
  color: var(--dark);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 1px;
  margin-bottom: 12px;
  display: block;
}

.contact-card p { margin-bottom: 6px; }

/* Footer */
footer {
  background: var(--dark);
  color: #b0b0b0;
  text-align: center;
  padding: 24px;
  font-size: 13px;
}

footer .logos {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  margin-bottom: 12px;
}

footer .logos img { height: 24px; }

footer .logo-chip {
  background: #fff;
  border-radius: 4px;
  padding: 6px 12px;
  display: inline-flex;
  align-items: center;
}

@media (max-width: 768px) {
  .service-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  nav { display: none; }
}

/* Payment section */
.payment {
  padding: 70px 24px;
}

.payment-alias {
  max-width: 400px;
  margin: 0 auto 32px;
  background: var(--dark);
  color: #fff;
  border-radius: 8px;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.payment-alias .label {
  font-size: 12px;
  letter-spacing: 1px;
  color: #999;
}

.payment-alias .value {
  font-size: 20px;
  font-weight: 700;
}

.payment-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  max-width: 700px;
  margin: 0 auto;
}

.payment-card {
  background: var(--gray-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  border-top: 3px solid var(--accent);
}

.payment-card h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.payment-card .titular {
  color: var(--accent);
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 10px;
}

.payment-card p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 3px;
}

/* WhatsApp floating button */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: #25D366;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.25);
  z-index: 999;
  transition: transform 0.2s;
}

.whatsapp-float:hover {
  transform: scale(1.08);
}

@media (max-width: 768px) {
  .payment-grid { grid-template-columns: 1fr; }
  .payment-alias { flex-direction: column; gap: 6px; text-align: center; }
}

.phone-link {
  color: inherit;
  text-decoration: none;
}
.phone-link:hover {
  color: #25D366;
  text-decoration: underline;
}

/* Gallery */
.gallery {
  padding: 70px 24px;
  background: var(--gray-bg);
}

.gallery-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  grid-template-rows: 160px 160px;
  gap: 14px;
  max-width: 900px;
  margin: 0 auto;
}

.gallery-grid img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
}

.gallery-grid img.gallery-tall {
  grid-row: span 2;
  height: 100%;
}

@media (max-width: 768px) {
  .gallery-grid {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 140px 140px 140px;
  }
  .gallery-grid img.gallery-tall {
    grid-row: span 1;
    grid-column: span 2;
    height: 180px;
  }
}